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Sol-Ark 8K vs Sol-Ark 12K : The Difference Between the Hybrid All-In-One Inverters

Sol-Ark has two models of hybrid all-in-one inverters: 8K (SOL-ARK-8K-48-ST) & 12K (SOL-ARK-12K-P). Here's a comparison of their inverters.


Sol-Ark 8K


Sol-Ark 12K

Design Type

DC Transformerless


Design Type

DC Transformerless

Price

$


Price

$$

Solar PVContinuous Power

8KW


Solar PVContinuous Power

12KW

Inverter AC Continuous Power

8KW


Inverter AC Continuous Power

9KW

Inverter Battery Continuous Power

8KW


Inverter Battery Continuous Power

8KW

Off Grid Inverter AC Peak Power (5s)

20KW


Off Grid Inverter AC Peak Power (5s)

20KW

AC to DC Charger

185A


AC to DC Charger

185A

User Interface

Color Touch


User Interface

Color Touch

PV to Battery Efficiency @ 65%

97.5%


PV to Battery Efficiency @ 65%

97.5%

AC to Battery Efficiency @ 65%

96.0%


AC to Battery Efficiency @ 65%

96.0%

Battery to AC Efficiency @ 65%

95.5%


Battery to AC Efficiency @ 65%

95.5%

On Grid PV to AC Efficiency @ CEC

96.5%


On Grid PV to AC Efficiency @ CEC

96.5%

Off Grid or Time of Use

PV -> Battery -> AC Losses @ 65%

7%


Off Grid or Time of Use

PV -> Battery -> AC Losses @ 65%

7%

Grid Failure UPS Transfer Time

8ms


Grid Failure UPS Transfer Time

4ms

Low Cost Easy Install


Low Cost Easy Install

Warranty

5/10 yr


Warranty

10 yr

AC Coupling to existing Inverters


AC Coupling to existing Inverters

Parallel Stacking

X


Parallel Stacking

120/240/208V 3-Phase

X


120/240/208V 3-Phase

Generator Support


Generator Support

AC Load Shedding for TOU & Off Grid


AC Load Shedding for TOU & Off Grid


Summary:
While the 8K is a great option, we typically recommend the 12K because there isn't a significant difference between the two inverters' prices. For a bit more, you can have 9kW of continuous AC power (instead of 8kW from the Sol-Ark 8K) and the flexibility to stack inverters for higher power output if necessary (unlike the 8K model).